焦磷酸四钠

CAS 1004291-85-3Na4P2O7MW 265.90

焦磷酸四钠（CAS 1004291-85-3）：分子式 Na4P2O7、分子量 265.90。

产品概览

CAS号	1004291-85-3
分子式	Na4P2O7
分子量	265.90
熔点	1810 °F (NIOSH, 2024)

技术档案

这个产品是什么

焦磷酸四钠是一种化工化合物，登记 CAS 号为 1004291-85-3，分子式 Na4P2O7（分子量 265.90）。

识别信息

登记 CAS 号：1004291-85-3

其分子式 Na4P2O7 由 4 个钠、2 个磷、7 个氧组成。

别名/同义词：焦磷酸四钠 · TETRASODIUM PYROPHOSPHATE · Sodium diphosphate tetrabasic

常见问题

焦磷酸四钠的 CAS 号是多少？

焦磷酸四钠的 CAS 登记号为 1004291-85-3。

焦磷酸四钠的分子式与分子量是多少？

分子式 Na4P2O7，分子量 265.90。

焦磷酸四钠还有哪些别名？

别名/同义词：焦磷酸四钠、TETRASODIUM PYROPHOSPHATE、Sodium diphosphate tetrabasic。

PubChem 公开数据

焦磷酸四钠（CAS 1004291-85-3）的独立参考数据，整理自公开化学数据库。

各数据库的登记标识

CAS Registry Number	1004291-85-3
PubChem CID	24403
Molecular formula	Na4P2O7
IUPAC name	tetrasodium;phosphonato phosphate
UNII (FDA)	O352864B8Z

计算分子描述符

Molecular Weight	265.90
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	7
Rotatable Bond Count	0
Exact Mass	265.87100346
Monoisotopic Mass	265.87100346
Topological Polar Surface Area	136
Heavy Atom Count	13

在册的理化数值

Melting Point	1810 °F (NIOSH, 2024)
Melting Point	988 °C
Melting Point	993 °C
Melting Point	1810 °F
Solubility	7 % at 77 °F (NIOSH, 2024)
Solubility	(77 °F): 7%
Density	2.534
Density	2.534 @25 °C
Density	2.45
Vapor Pressure	0 mmHg (approx) (NIOSH, 2024)

在册的记载用途

同义词与商品名

Sodium pyrophosphate; TETRASODIUM PYROPHOSPHATE; 7722-88-5; TSPP; Tetrasodium diphosphate; Phosphotex; Diphosphoric acid, tetrasodium salt; Sodium diphosphate; Victor TSPP; Natrium pyrophosphat; Sodium diphosphate, anhydrous; Pyrophosphoric acid tetrasodium salt; Sodium phosphate (Na4P2O7); Sodium diphosphate (Na4P2O7); Sodium pyrophosphate, tetrabasic; DTXSID9042465

已收录的法规名录

Regulatory & Food Contact	FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ACIDITY_REGULATOR; EMULSIFIER; SEQUESTRANT: Food Additives ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT, FORMULATION AID, HUMECTANT, Group MTDI for phosphorus from all sources, expressed as P TRS 683-JECFA 26/25
GHS notification summary	6.2% (95 / 1523)

Regulatory & Food Contact

FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT
FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS
ACIDITY_REGULATOR; EMULSIFIER; SEQUESTRANT: Food Additives
ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT, FORMULATION AID, HUMECTANT,
Group MTDI for phosphorus from all sources, expressed as P
TRS 683-JECFA 26/25

GHS notification summary

6.2% (95 / 1523)

GHS 危害分类

GHS notification summary	6.2% (95 / 1523)
Reported hazard statements	H302 (51.1%), H315 (13.1%), H318 (49.6%), H319 (44.2%), H335 (11.7%), H312 (100%), H332 (100%), H413 (100%)

This chemical does not meet GHS hazard criteria for 6.2% (95 of 1523) of reports.

H302 (51.1%): Harmful if swallowed [Warning Acute toxicity, oral]

公开数据库对它的描述

Sodium diphosphate tetrabasic · CAS 1004291-85-3 · Na4P2O7. UNII O352864B8Z. Melting Point: 1810 °F (NIOSH, 2024); Melting Point: 988 °C; Melting Point: 993 °C.

物理形态与操作说明

数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。